Pires, A. R. & Loureiro, S.M.C. (2013). A study on antecedents and impacts of engagement and participation in brand communities in Portugal 2013. In Demetris Vrontis, Yaakov Weber and Shlomo Tarba (Ed.), Conference book Proceedings of 6th EuroMed Conference of the EuroMed Academy of Business Research- Confronting Contemporary Business Challenges through Management Innovation. (pp. 1820-1836).: EuroMed Press.